Home / 20,840,240.80-31,265,890.80-7,375,664.80

Finding the Fourth Proportional to 20,840,240.80, 31,265,890.80 and 7,375,664.80

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Solution

The fourth proportional to 20,840,240.80, 31,265,890.80 and 7,375,664.80 is: 11,065,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840,240.80 : 31,265,890.80 = 7,375,664.80 : x
  2. Step 2: Convert to fraction form
    20,840,240.80/31,265,890.80 = 7,375,664.80/x
  3. Step 3: Cross multiply
    20,840,240.80x = 31,265,890.80 × 7,375,664.80
  4. Step 4: Simplify right side
    20,840,240.80x = 230,606,730,214,203.84
  5. Step 5: Solve for x
    x = 230,606,730,214,203.84/20,840,240.80
  6. Step 6: Final answer
    x = 11,065,454.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.